Connecting a Mobile WLAN to a Wireless Internet Hotspot

Hi, I am trying to work out a reliable method of allowing a small mobile WLAN network to be quickly setup in any location that has a wireless hotspot i.e. Hotel, RV Park, Coffee Shop car park, etc.
The WLAN will be a very simple 3 or 4 PC network in a vehicle but with no internet connection. When we turn up at a location, I want the WLAN router to be able to connect to whatever wireless hotspot is available. Is such a setup practical and achieveable or is it an unrealistic/problematic scenario ? I have looked at WDS and Bridging but it seems to me that these all require some control/configuration of the Wireless AP (Hotspot) you want to connect to, which of course I will not have at whatever location I arrive at.
Any ideas/advice would be much appreciated.

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Hello
please give me detailes
from where ?
how mutch the expecting cost?
what is the minimum area of coverages?
whitch the available band for wireless?
then i can provide you better ideas
i am working same industry

Thanks for the advice but it is not so much the choice of Router that I am confused about as to the configuration of the network.

Whichever wireless router I choose, if I configure this for DHCP so that laptops and iphones in the vehicles WLAN network can get an IP address from the router, how do I then connect to a wireless hotspot which will also be operating DHCP and which will try and give my router an IP address ?

Ideally I would like to have a Long Range Wifi Adaptor in the system so that I can get the best chance of finding and connecting to a hotspot but do I have one PC in the network with this Long Range Wifi Adaptor connected and then share this internet connection with the rest of the network ? How will that PC cope with getting two IP addresses from the network Router and the Hotspot ?

One option, I guess, is to go for a Mobile Broadband type router with a 3G connection and then set it up to give priority to Wifi if it detects and connects to a Hotspot but I have no experience of this type of router.

Am I being pessimistic and over complicating things or is it easier than I think and I should just bite the bullet, buy any mobile 3G wireless router and give it a go ?

Unfortunately I only know as much as I have picked up over the years and I have no proper network training. Although I have setup lots of small office and home networks for friends and family, this new vehicle WLAN network that I would like to setup has me a bit stumped.

_______________
| INTERNT |---(1)-->>www.top10-broadband.co.uk/packages/|_______________|
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________|_______
| MODEM |---(2)-->>YOUR ISP MODEM/ROUTER
|_______________|
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_______|_______
|HOTSPOT EXPRESS|---(3)-->>ONE P4 PC +2 NIC,1 CONNECTED
|____SERVER_____| TO ISP & 1 TO SWITCH/HUB
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_______|_______
| SWITCH/HUB |---(4)-->>FROM HOTSPOT EXPRESS
|_______________|
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_______|_______
| ACCESS POINT |---(5)-->>FROM HOTSPOT EXPRESS SWITCH,
|____OUTDOOR____|
hELLO
DONT WORRY,NO NEED TOO MUTCH CONFIGURATION HERE,THE HOTSPOT EXPRESS HAVE
UNLIMITED OPTIONS.
THE HOTSPOT EXPRESS HAVE DHCP ,AAA RADIUS SERV, HTTP AUTHENTICATION AND MORE
WHEN THE USERS JOIN THE WIRELESS NETWORK laptops and iphones in the vehicles
WLAN network WILL get an IP address from the HOTSPOT EXPRESS THROUGH THE
router, THEN USER GET A LOGIN PAGE THERE ENTER THE USERNAME AND PASSWORD.
I DONT KNOW WHITCH BRANDED WIRELESS DEVICES ARE AVAILABLE ION UK PLEASE GIVE
ME SOME BDRAND NAME THEN I WILL GIVE MY SUJGECTION.
Please download the recent version of HotSpot Express CD ( available as an
ISO file format ) from the following link
http://hotspotexpress.in/hotexbilling.htmlThis file is in ISO format. You need to use CD-Writing softwares such as
Nero, DeepBurner, etc, to create the HotSpot Express Self Installation CD
using this ISO file. You may refer
http://hotspotexpress.in/hotspotisoburningdemo.swf Backup the database file using the menu BACKUP, if you are already running
earlier version of hotspot express.
Insert the CD in the computer dedicated to run as HotSpot Express Server.
Ensure that this computer is attached two ethernet cards (preferably of
different brands for quicker recognition). **Please note that all data in
this hard disk will be lost.
To install the software from the CD, refer the below screenshots.
http://hotspotexpress.in/screenshots/HotSpotExpres sCDinstallation.zipTo know how to use the software, please refer the below screenshots.
http://hotspotexpress.in/screenshots/HotSpot-Express-PrePaid-Implementation.ziphttp://hotspotexpress.in/screenshots/HotSpot-Express-PostPaid-Implementation.zipPlease also refer the usermanual at http://hotspotexpress.in/manualConnect a computer/laptop with any one ethernet card in the HotSpot Express
Server. Set this compter/laptop to Obtain IP Address Automatically from the
HotSpot Server. If you do not get the expected ip number, most probably you
have connected it to the WAN side. Swap the cable to the other ethernet
card, and mark this as LAN ethernet card. Now, you must get the DHCP IP
number in the computer/laptop.
Use http://192.168.100.1/admin to access Web Administration Menu of HotSpot
Express. Use the login name and password as 'admin' and 'admin', during
authentication if any. Later you are ought to change this Admin password to
your preferred password, using the menu Advanced Settings.

Sorry Binu, but I think you have misunderstood my original question. I do not want to setup a Wifi Hotspot, I want to create a WLAN in a vehicle that can arrive at a location, find a Wifi Hotspot, connect to it and provide internet connectivity to all PCs in the vehicle WLAN.

I have ordered a ZOOM 3G wireless router and will start doing some practical tests to see if the vehicle WLAN setup that I want is achievable and how difficult it is. If I am successful, I'll submit a white paper but if anyone else has done this sort of setup before, I would still love to hear from you and save myself from re-inventing the wheel !